NHB857: red dwarf star with 4 planets

Solar system 'NHB857' comprises the star 'NHB857' and the retinue of celestial objects gravitationally bound to it:
4 planets and their 43 moons,
as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NHB857', a red dwarf class star that contains about 99.99% of
the system's known mass and dominates it gravitationally. NHB857 is located more than 3261 lightyears from the center of the galaxy.

This solar system comprises 4 planets

NHB857.1
is a large terrestrial planet (7155 km radius) which orbits its star in 182 Earth days, one day on NHB857.1 lasts 8 Earth hours. Its average temperature is 213 K (-60 C), its atmosphere mainly consists of nitrogen and it has 10 moons.

NHB857.2
is a medium terrestrial planet (6552 km radius) which orbits its star in 721 Earth days, one day on NHB857.2 lasts 9 Earth hours. Its average temperature is 68 K (-205 C), its atmosphere mainly consists of nitrogen, oxygen and it has 9 moons.

NHB857.3
is a very small terrestrial planet (2666 km radius) which orbits its star in 1324 Earth days, one day on NHB857.3 lasts 39 Earth hours. Its average temperature is 45 K (-228 C), its atmosphere mainly consists of nitrogen and it has 0 moons.

NHB857.4
is a medium terrestrial planet (5377 km radius) which orbits its star in 2433 Earth days, one day on NHB857.4 lasts 12 Earth hours. Its average temperature is 27 K (-246 C), its atmosphere mainly consists of nitrogen, oxygen and it has 24 moons.